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Journal of Wildlife Diseases, 10(3), 1974, pp. 243-248
© Wildlife Disease Association  1974
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THE HISTOPATHOLOGY OF CUTTHROAT TROUT EXPERIMENTALLY INFECTED WITH THE BLOOD FLUKE Sanguinicola klamathensis

WALLACE A. EVANS 1

1 Department of Zoology, Brigham Young University, Provo, Utah 84601 U.S.A.

The pathological effects of the blood fluke, Sanguinicola klamathensis Wales 1958, was studied in the cutthroat trout host (Salmo clarki). Cutthroat trout fingerlings of a non-infected group and a group experimentally infected by exposure to 6,000 Fluminicola fusca snails, with a 6% prevalence of infection with S. klamathensis, were maintained for 7 months. The experimental group had 80% mortality after 3 months exposure to the blood flukes. Histopathology revealed a progressive infection with fluke eggs and miracidia within the gills, kidney, and heart as evidenced by necrosis and calcification of heart and kidney tissue, and hyperplasia of the gills.

Submitted on November 20, 1973






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Copyright © 1974 by the Wildlife Disease Association.